问题如下图：
选项：
A.
B.
C.
解释：
你好，这一题没有相关问题和答案，我看之前有同学问过，但是目前还是没有，请麻烦技术处理一下，谢谢
NO.PZ2018062001000012 fatter tails anless peake thinner tails anmore peake C is correct. The t-stribution will have thinner tails anmore peakeif the gree of freem is increasing. When gree of freew is close to infinite, the stribution ten to normstribute请问自由度是阿尔法吗？增加的话，置信区间不就小了么…小的话t分布不就越不正态分布？
fatter tails anless peake thinner tails anmore peake C is correct. The t-stribution will have thinner tails anmore peakeif the gree of freem is increasing. When gree of freew is close to infinite, the stribution ten to normstribute 不是尖峰肥尾吗？怎么more peake反而尾巴还小了呢
我就是测试一下，不用回答
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